﻿// Copyright 2017 the original author or authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Steeltoe.Messaging
{
    /// <summary>
    /// A generic message representation with headers and a body
    /// </summary>
    public interface IMessage
    {
        /// <summary>
        /// Gets the body of the message
        /// </summary>
        object Payload { get; }

        /// <summary>
        /// Gets the headers for the message
        /// </summary>
        IMessageHeaders Headers { get; }
    }

    /// <summary>
    /// A generic message representation with headers and a body
    /// </summary>
    /// <typeparam name="T">the type of the payload</typeparam>
    public interface IMessage<out T> : IMessage
    {
        /// <summary>
        /// Gets the headers for the message
        /// </summary>
        new T Payload { get; }
    }
}
